CA2588135A1 - Methods and apparatus for drilling, completing and configuring u-tube boreholes - Google Patents

Methods and apparatus for drilling, completing and configuring u-tube boreholes Download PDF

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Publication number
CA2588135A1
CA2588135A1 CA002588135A CA2588135A CA2588135A1 CA 2588135 A1 CA2588135 A1 CA 2588135A1 CA 002588135 A CA002588135 A CA 002588135A CA 2588135 A CA2588135 A CA 2588135A CA 2588135 A1 CA2588135 A1 CA 2588135A1
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Canada
Prior art keywords
borehole
section
surface location
directional
comprised
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Granted
Application number
CA002588135A
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French (fr)
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CA2588135C (en
Inventor
Dean Lee
Richard Thomas Hay
Joe E. Hess
Nestor Humberto Gil
Tracy Lorne Grills
Barry Gerard Ryan
Rodney Alan Schnell
Kyler Tebbutt
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Halliburton Energy Services Inc
Original Assignee
Halliburton Energy Services, Inc.
Dean Lee
Richard Thomas Hay
Joe E. Hess
Nestor Humberto Gil
Tracy Lorne Grills
Barry Gerard Ryan
Rodney Alan Schnell
Kyler Tebbutt
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Application filed by Halliburton Energy Services, Inc., Dean Lee, Richard Thomas Hay, Joe E. Hess, Nestor Humberto Gil, Tracy Lorne Grills, Barry Gerard Ryan, Rodney Alan Schnell, Kyler Tebbutt filed Critical Halliburton Energy Services, Inc.
Priority to CA2760495A priority Critical patent/CA2760495C/en
Publication of CA2588135A1 publication Critical patent/CA2588135A1/en
Application granted granted Critical
Publication of CA2588135C publication Critical patent/CA2588135C/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
    • E21B43/305—Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

A borehole network including first and second end surface locations and at least one intermediate surface location interconnected by a subterranean path, and a method for connecting a subterranean path between a first borehole including a directional section and a second borehole including a directional section. A directional drilling component is drilled in at least one of the directional sections to obtain a required proximity between the first and second boreholes. An intersecting component is drilled, utilizing magnetic ranging techniques, from one directional section to provide a borehole intersection between the first and second boreholes, thereby connecting the subterranean path.

Claims (94)

  1. The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

    l. A method for connecting a subterranean path between a first borehole and a second borehole, wherein the first borehole is comprised of a first surface location and a first borehole directional section and wherein the second borehole is comprised of a second surface location and a second borehole directional section, the method comprising:

    (a) drilling a directional drilling component in at least one of the first borehole directional section or the second borehole directional section in order to obtain a required proximity between the first borehole and the second borehole;

    (b) drilling an intersecting component from one of the first borehole directional section or the second borehole directional section in order to provide a borehole intersection between the first borehole and the second borehole, thereby connecting the subterranean path.
  2. 2. The method as claimed in claim 1 wherein a distal end of the first borehole directional section and a distal end of the second borehole directional section are offset following the drilling of the directional drilling component.
  3. 3. The method as claimed in claim 2 wherein the intersecting component is drilled in the second borehole and wherein the distal end of the second borehole directional section is offset vertically from the distal end of the first borehole directional section following the drilling of the directional drilling component such that the distal end of the second borehole directional section is above the distal end of the first borehole directional section.
  4. 4. The method as claimed in claim 3 wherein the distal end of the second borehole directional section and the distal end of the first borehole directional section are substantially aligned in a vertical plane following the drilling of the directional drilling component.
  5. 5. The method as claimed in claim 4 wherein a distal end of the first borehole directional section and a distal end of the second borehole directional section are substantially parallel to each other following the drilling of the directional drilling component.
  6. 6. The method as claimed in claim 2 wherein the borehole intersection is located within a circular area defined by the first surface location and the second surface location.
  7. 7. The method as claimed in claim 6 wherein the first borehole directional section has an azimuthal path and wherein the azimuthal path of the first borehole directional section extends substantially in a direction toward the second surface location.
  8. 8. The method as claimed in claim 7 wherein the second borehole directional section has an azimuthal path and wherein the azimuthal path of the second borehole directional section extends substantially in a direction toward the first surface location.
  9. 9. The method as claimed in claim 2 wherein an inclination of the distal end of the first borehole directional section is substantially horizontal.
  10. 10. The method as claimed in claim 9 wherein an inclination of the distal end of the second borehole directional section is substantially horizontal.
  11. 11. The method as claimed in claim 2 wherein drilling the intersecting component is comprised of providing a relatively smooth transition between the first borehole and the second borehole.
  12. 12. The method as claimed in claim 11 wherein drilling the intersecting component is comprised of drilling an S-shape curve.
  13. 13. The method as claimed in claim 12 wherein the S-shape curve is comprised of a first curve having a first curve radius and an opposing second curve having a second curve radius and wherein the first curve radius and the second curve radius are substantially equal.
  14. 14. The method as claimed in claim 12 wherein the first curve has a first curve length, wherein the second curve has a second curve length, and wherein the first curve length and the second curve length are substantially equal.
  15. 15. The method as claimed in claim 2 wherein drilling the intersecting component is comprised of using a magnetic ranging system to guide the drilling of the intersecting component.
  16. 16. The method as claimed in claim 15 wherein the magnetic ranging system is comprised of a magnetic guidance tool system and wherein the required proximity of the first borehole and the second borehole following the drilling of the directional drilling component is less than about 30 meters.
  17. 17. The method as claimed in claim 15 wherein the magnetic ranging system is comprised of a rotating magnet ranging system and wherein the required proximity of the first borehole and the second borehole following the drilling of the directional drilling component is less than about 70 meters.
  18. 18. The method as claimed in claim 15 wherein drilling the directional drilling component is comprised of providing an overlap between the distal end of the first borehole directional section and the distal end of the second borehole directional section following the drilling of the directional drilling component in order to facilitate drilling of the intersecting component using the magnetic ranging system.
  19. 19. The method as claimed in claim 2 wherein drilling the directional drilling component is comprised of drilling in the second borehole directional section and wherein drilling the directional drilling component is comprised of providing a sidetrack location in the second borehole directional section before the distal end of the second borehole directional section.
  20. 20. The method as claimed in claim 19 wherein the sidetrack location is comprised of a discontinuity, a radius or a bend in the second borehole directional section.
  21. 21. The method as claimed in claim 2 wherein the intersecting component is drilled from the second borehole directional section, wherein the first borehole directional section has a gauge, wherein drilling the directional drilling component is performed using a drill bit having a gauge, and wherein the gauge of the drill bit used for drilling the intersecting component is less than the gauge of the first borehole directional section.
  22. 22. The method as claimed in claim 21, further comprising enlarging the gauge of the intersecting component after the borehole intersection has been provided so that the intersecting component has a full gauge relative to the first directional section.
  23. 23. The method as claimed in claim 22 wherein enlarging the gauge of the intersecting component is comprised of passing a hole opener through the borehole intersection.
  24. 24. A method for connecting a subterranean path between a target borehole and an intersecting borehole by drilling an intersecting component between the target borehole and the intersecting borehole to provide a borehole intersection, wherein the target borehole is comprised of a target borehole surface location and a target borehole directional section, wherein the intersecting borehole is comprised of an intersecting borehole surface location and an intersecting borehole directional section, and wherein a distal end of the target borehole directional section and a distal end of the intersecting borehole directional section are offset, the method comprising:

    (a) placing a first magnetic device comprising one of a magnet or a magnetic instrument at an initial position in the target borehole;

    (b) placing a drill string comprising a drill bit and a second magnetic device comprising the other of the magnet or the magnetic instrument in the intersecting borehole;

    (c) performing an initial magnetic ranging survey in order to obtain data representing the relative positions of the first magnetic device and the second magnetic device;

    (d) drilling, in the intersecting borehole, a portion of the intersecting component toward the target borehole;

    (e) moving the first magnetic device in the target borehole to a new position in the target borehole which will facilitate a further magnetic ranging survey;

    (f) performing the further magnetic ranging survey in order to obtain data representing the relative positions of the first magnetic device and the second magnetic device; and (g) repeating (d), (e) and (f) until the borehole intersection is provided between the target borehole and the intersecting borehole.
  25. 25. The method as claimed in claim 24 wherein an overlap is provided between the distal end of the target borehole directional section and the distal end of the intersecting borehole directional section.
  26. 26. The method as claimed in claim 24 wherein the first magnetic device is comprised of the magnet and wherein the second magnetic device is comprised of the magnetic instrument.
  27. 27. The method as claimed in claim 26 wherein the magnet is comprised of a solenoid oriented with the magnet poles aligned substantially parallel to the target borehole directional section.
  28. 28. The method as claimed in claim 27 wherein performing the initial magnetic ranging survey and performing the further magnetic ranging survey comprises energizing the solenoid with a varying electrical current so that the solenoid provides a varying magnetic field.
  29. 29. The method as claimed in claim 28 wherein the offset is less than about 30 meters.
  30. 30. The method as claimed in claim 24 wherein the first magnetic device is comprised of the magnetic instrument and wherein the second magnetic device is comprised of the magnet.
  31. 31. The method as claimed in claim 30 wherein the magnet is comprised of a magnet assembly oriented with the magnet poles aligned substantially transverse to the drill string axis.
  32. 32. The method as claimed in claim 31 wherein performing the initial magnetic ranging survey and performing the further magnetic ranging survey comprises rotating the drill string so that the magnet assembly provides a varying magnetic field.
  33. 33. The method as claimed in claim 32 wherein the offset is less than about 70 meters.
  34. 34. The method as claimed in claim 24 wherein the intersecting component is comprised of a curve.
  35. 35. The method as claimed in claim 34 wherein the curve is comprised of an S-shape curve, wherein the S-shape curve is comprised of a first curve and an opposing second curve, and wherein the method is comprised of drilling the first curve and the second curve in order to provide the borehole intersection.
  36. 36. The method as claimed in claim 35 wherein the first curve has a first curve radius, wherein the second curve has a second curve radius, and wherein the first curve radius and the second curve radius are substantially equal.
  37. 37. The method as claimed in claim 35 wherein the first curve has a first curve length, wherein the second curve has a second curve length, and wherein the first curve length and the second curve length are substantially equal.
  38. 38. The method as claimed in claim 24 wherein the target borehole directional section has a gauge, wherein the drill bit has a gauge, and wherein the gauge of the drill bit is less than the gauge of the target borehole directional section.
  39. 39. The method as claimed in claim 38, further comprising enlarging the gauge of the intersecting component after the borehole intersection has been provided so that the intersecting component has a full gauge relative to the target borehole directional section.
  40. 40. The method as claimed in claim 39 wherein enlarging the gauge of the intersecting component is comprised of passing a hole opener through the borehole intersection.
  41. 41. The method as claimed in claim 24 wherein the borehole intersection is located within a circular area defined by the target borehole surface location and the intersecting borehole surface location.
  42. 42. The method as claimed in claim 24 wherein the borehole intersection is located outside of a circular area defined by the target borehole surface location and the intersecting borehole surface location.
  43. 43. The method as claimed in claim 24 wherein the distal end of the intersecting borehole directional section is offset vertically from the distal end of the target borehole directional section such that the distal end of the intersecting borehole directional section is above the distal end of the target borehole directional section.
  44. 44. The method as claimed in claim 43 wherein the distal end of the intersecting borehole directional section and the distal end of the target borehole directional section are substantially aligned in a vertical plane.
  45. 45. The method as claimed in claim 44 wherein the distal end of the intersecting borehole directional section and the distal end of the target borehole directional section are substantially parallel to each other.
  46. 46. The method as claimed in claim 24 wherein an inclination of the distal end of the target borehole directional section is substantially horizontal.
  47. 47. The method as claimed in claim 46 wherein an inclination of the distal end of the intersecting borehole is substantially horizontal.
  48. 48. A borehole network, comprising:
    (a) a first end surface location;

    (b) a second end surface location;

    (c) at least one intermediate surface location located between the first end surface location and the second end surface location; and (d) a subterranean path connecting the first end surface location, the intermediate surface location, and the second end surface location.
  49. 49. The borehole network as claimed in claim 48, further comprising a sealing mechanism for sealing the intermediate surface location from the subterranean path.
  50. 50. The borehole network as claimed in claim 48, further comprising a pump associated with the intermediate surface location, for pumping a fluid through the subterranean path.
  51. 51. The borehole network as claimed in claim 48, further comprising a surface borehole extending between the subterranean path and the intermediate surface location.
  52. 52. The borehole network as claimed in claim 51 wherein the subterranean path is comprised of a pair of lateral boreholes which connect with the surface borehole.
  53. 53. The borehole network as claimed in claim 52, further comprising a lateral junction for connecting the surface borehole and the pair of lateral boreholes.
  54. 54. The borehole network as claimed in claim 51, further comprising a pump located at the intermediate surface location, for pumping a fluid through the subterranean path.
  55. 55. The borehole network as claimed in claim 51, further comprising a pump located in the surface borehole, for pumping a fluid through the subterranean path.
  56. 56. The borehole network as claimed in claim 55 wherein the pump is an electrical submersible pump.
  57. 57. The borehole network as claimed in claim 56, further comprising a power source located at the intermediate surface location, for providing electrical power to the electrical submersible pump.
  58. 58. The borehole network as claimed in claim 56, further comprising a power source located at one of the first end surface location or the second end surface location, for providing electrical power to the electrical submersible pump.
  59. 59. The borehole network as claimed in claim 52, further comprising a pump located in one of the pair of lateral boreholes, for pumping a fluid through the subterranean path.
  60. 60. The borehole network as claimed in claim 59 wherein the pump is an electrical submersible pump.
  61. 61. The borehole network as claimed in claim 60, further comprising a power source located at the intermediate surface location, for providing electrical power to the electrical submersible pump.
  62. 62. The borehole network as claimed in claim 60, further comprising a power source located at one of the first end surface location or the second end surface location, for providing electrical power to the electrical submersible pump.
  63. 63. The borehole network as claimed in claim 48, further comprising a surface installation associated with the first end surface location, for transferring a fluid to the borehole network.
  64. 64. The borehole network as claimed in claim 48, further comprising a surface installation associated with the second end surface location, for receiving a fluid from the borehole network.
  65. 65. The borehole network as claimed in claim 48 wherein the intermediate surface location is located within a circular area defined by the first end surface location and the second end surface location.
  66. 66. The borehole network as claimed in claim 48 wherein the borehole network is comprised of a plurality of intermediate surface locations.
  67. 67. The borehole network as claimed in claim 66 wherein the intermediate surface locations are located within a circular area defined by the first end surface location and the second end surface location.
  68. 68. A well system comprising:

    (a) a borehole, wherein the borehole is comprised of a first end surface location, a second end surface location and a subterranean path connecting the first end surface location and the second end surface location;

    (b) a first casing string extending along a portion of the subterranean path from the first end surface location, thereby providing a first cased portion of the borehole;

    (c) a second casing string extending along a portion of the subterranean path from the second end surface location, thereby providing a second cased portion of the borehole;

    (d) an uncased portion of the borehole between the first cased portion and the second cased portion;

    (e) a first liner section extending within at least a portion of the first casing string, the first liner section having a first distal connection end;

    (f) a second liner section extending within at least a portion of the second casing string, the second liner section having a second distal connection end;

    (g) a gap between the first distal connection end and the second distal connection end; and (h) a bridge pipe bridging the gap between the first distal connection end and the second distal connection end and defining a fluid passage therethrough.
  69. 69. The well system as claimed in claim 68, further comprising a mechanism for retaining the bridge pipe in a desired position relative to at least one of the first liner section and the second liner section.
  70. 70. The well system as claimed in claim 69 wherein the retaining mechanism is a latching mechanism.
  71. 71. The well system as claimed in claim 70 wherein the latching mechanism is comprised of one or more latching members and a compatible latching profile.
  72. 72. The well system as claimed in claim 71 wherein the one or more latching members are positioned on the bridge pipe and wherein the latching profile is positioned on either the first liner section or the second liner section.
  73. 73. The well system as claimed in claim 72 wherein the bridge pipe has an uphole end and wherein the latching members are positioned adjacent to the uphole end of the bridge pipe.
  74. 74. The well system as claimed in claim 71 wherein the latching mechanism permits the one or more latching members and the latching profile to be moved past each other in a first direction and prevents the one or more latching members and the latching profile from being moved past each other in a second direction.
  75. 75. The well system as claimed in claim 68, further comprising a first sealing assembly for providing a seal between the bridge pipe and the first liner section and a second sealing assembly for providing a seal between the bridge pipe and the second liner section.
  76. 76. The well system as claimed in claim 75 wherein the bridge pipe has an external surface, wherein the first sealing assembly is comprised of a band of an elastomer material on the external surface of the bridge pipe, and wherein the second sealing assembly is comprised of a band of an elastomer material on the external surface of the bridge pipe.
  77. 77. The well system as claimed in claim 76 wherein the first sealing assembly is comprised of an elastomer cup on the external surface of the bridge pipe and wherein the second sealing assembly is comprised of an elastomer cup on the external surface of the bridge pipe.
  78. 78. The well system as claimed in claim 68 wherein the bridge pipe has an uphole end, further comprising a structure at the uphole end of the bridge pipe which is adapted to provide a compatible connection with a running tool.
  79. 79. The well system as claimed in claim 78 wherein the bridge pipe is adapted to be retrievable with the running tool.
  80. 80. The well system as claimed in claim 68, further comprising a centralizer on the first liner section positioned adjacent to the first distal connection end for centralizing the first liner section in the borehole, and further comprising a centralizer on the second liner section positioned adjacent to the second distal connection end for centralizing the second liner section in the borehole.
  81. 81. The well system as claimed in claim 68 wherein the first casing string and the second casing string are cemented in the borehole.
  82. 82. The well system as claimed in claim 81 wherein the first liner section, the second liner section and the bridge pipe are cemented in the borehole.
  83. 83. The well system as claimed in claim 68 wherein the gap is located in the uncased portion of the borehole.
  84. 84. A method of constructing a well system in a borehole, wherein the borehole is comprised of a first end surface location, a second end surface location and a subterranean path connecting the first end surface location and the second end surface location, the method comprising:

    (a) introducing a first casing string into the borehole from the first end surface location, thereby providing a first cased portion of the borehole;

    (b) introducing a second casing string into the borehole from the second end surface location, thereby providing a second cased portion of the borehole, such that an uncased portion of the borehole extends between the first cased portion and the second cased portion;

    (c) introducing a first liner section into the borehole from the first end surface location so that at least a portion of the first liner section extends within the first casing string, the first liner section having a first distal connection end;

    (d) introducing a second liner section into the borehole from the second end surface location so that at least a portion of the second liner section extends within the second casing string, the second liner section having a second distal connection end, such that a gap exists between the first distal connection end and the second distal connection end;

    (e) introducing a bridge pipe into the borehole from one of the first surface location and the second surface location so that the bridge pipe bridges the gap between the first distal connection end and the second distal connection end, wherein the bridge pipe defines a fluid passage extending therethrough.
  85. 85. The method as claimed in claim 84, further comprising retaining the bridge pipe in a desired position relative to at least one of the first liner section and the second liner section.
  86. 86. The method as claimed in claim 85 wherein retaining the bridge pipe in a desired position is comprised of latching the bridge pipe with one of the first liner section and the second liner section with a latching mechanism.
  87. 87. The method as claimed in claim 86 wherein the latching mechanism is comprised of one or more latching members and a compatible latching profile.
  88. 88. The method as claimed in claim 87 wherein the latching mechanism permits the one or more latching members and the latching profile to be moved past each other in a first direction and prevents the one or more latching members and the latching profile from being moved past each other in a second direction.
  89. 89. The method as claimed in claim 84, further comprising connecting the first liner section with the first casing string and further comprising connecting the second liner section with the second casing string.
  90. 90. The method as claimed in claim 84, further comprising sealing the first liner section within the first casing string and sealing the second liner section within the second casing string.
  91. 91. The method as claimed in claim 84, further comprising sealing the bridge pipe within the first liner section and sealing the bridge pipe within the second liner section.
  92. 92. The method as claimed in claim 84, further comprising cementing the first casing string and the second casing string in the borehole.
  93. 93. The method as claimed in claim 92, further comprising cementing the first liner section, the second liner section and the bridge pipe in the borehole.
  94. 94. The method as claimed in claim 84 wherein the gap is located in the uncased portion of the borehole.
CA2588135A 2004-11-19 2005-11-17 Methods and apparatus for drilling, completing and configuring u-tube boreholes Active CA2588135C (en)

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Application Number Priority Date Filing Date Title
CA2760495A CA2760495C (en) 2004-11-19 2005-11-17 Methods and apparatus for drilling, completing and configuring u-tube boreholes

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US62974704P 2004-11-19 2004-11-19
US60/629,747 2004-11-19
PCT/CA2005/001751 WO2006053434A1 (en) 2004-11-19 2005-11-17 Methods and apparatus for drilling, completing and configuring u-tube boreholes

Related Child Applications (1)

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CA2588135A1 true CA2588135A1 (en) 2006-05-26
CA2588135C CA2588135C (en) 2012-02-14

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US (4) US20060124360A1 (en)
EP (2) EP2518264B1 (en)
CN (1) CN101099024B (en)
AU (2) AU2005306537B2 (en)
BR (1) BRPI0518347B1 (en)
CA (3) CA2760495C (en)
NO (2) NO336791B1 (en)
WO (1) WO2006053434A1 (en)

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AU2005306537A1 (en) 2006-05-26
AU2011201288A1 (en) 2011-04-14
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AU2005306537A2 (en) 2006-05-26
US8272447B2 (en) 2012-09-25
BRPI0518347A2 (en) 2008-11-18
NO20151124L (en) 2007-08-16
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CA2760495A1 (en) 2006-05-26
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EP2518264B1 (en) 2014-04-09
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US20060124360A1 (en) 2006-06-15
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